 
			 
			MCQOPTIONS
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				| 1. | Calculate the mean hydraulic radius for a channel having 20m2 cross sectional area and 50m of wetted perimeter. | 
| A. | 0.4m | 
| B. | 0.5m | 
| C. | 0.6m | 
| D. | 0.7m | 
| Answer» B. 0.5m | |